Using agent name instead of IP as Address in SNMP4J

Question

I'm trying to make a program that sends SNMP queries to some switches in the network.

Using the Net-snmp tools, I can send get requests to the switch using its name, and it works fine. But SNMP4J requires an IP address in CommunityTarget, so I get an IllegalArgumentException.

This is the relevant part of the code:

TransportMapping transport = new DefaultUdpTransportMapping();
transport.listen();

CommunityTarget comtarget = new CommunityTarget();
comtarget.setCommunity(new OctetString("public"));
comtarget.setVersion(SnmpConstants.version1);
comtarget.setAddress(new UdpAddress("switchName")); // exception happens here
comtarget.setRetries(2);
comtarget.setTimeout(1000);

How can I work around this?

score 0 · Accepted Answer · edited May 23 '17 at 12:15

0

You can get the IP address by using DNS resolution, like this answer says:

InetAddress address = InetAddress.getByName(switchName); 
System.out.println(address.getHostAddress());

edited May 23 '17 at 12:15

Community

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answered Mar 08 '16 at 10:18

dluga

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Using agent name instead of IP as Address in SNMP4J

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